20545508720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2887}}^1\times {\mathrm{8087}}^1$

素因数の和:10998

約数の個数: 80

約数和(自身を含む): 52135377408

約数和(自身を除く): 31589868688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2887, 5774, 8087, 11548, 14435, 16174, 23096, 28870, 31757, 32348, 40435, 46192, 57740, 63514, 64696, 80870, 88957, 115480, 127028, 129392, 158785, 161740, 177914, 230960, 254056, 317570, 323480, 355828, 444785, 508112, 635140, 646960, 711656, 889570, 1270280, 1423312, 1779140, 2540560, 3558280, 7116560, 23347169, 46694338, 93388676, 116735845, 186777352, 233471690, 256818859, 373554704, 466943380, 513637718, 933886760, 1027275436, 1284094295, 1867773520, 2054550872, 2568188590, 4109101744, 5136377180, 10272754360, 20545508720]

約数ペア:

[(1, 20545508720), (2, 10272754360), (4, 5136377180), (5, 4109101744), (8, 2568188590), (10, 2054550872), (11, 1867773520), (16, 1284094295), (20, 1027275436), (22, 933886760), (40, 513637718), (44, 466943380), (55, 373554704), (80, 256818859), (88, 233471690), (110, 186777352), (176, 116735845), (220, 93388676), (440, 46694338), (880, 23347169), (2887, 7116560), (5774, 3558280), (8087, 2540560), (11548, 1779140), (14435, 1423312), (16174, 1270280), (23096, 889570), (28870, 711656), (31757, 646960), (32348, 635140), (40435, 508112), (46192, 444785), (57740, 355828), (63514, 323480), (64696, 317570), (80870, 254056), (88957, 230960), (115480, 177914), (127028, 161740), (129392, 158785)]